Now available in natural and with a cedar tone pigmentation or a brown tone pigmentation for a look similar to cedar and redwood products.
For nearly 40 years consumers across the South have been turning to Great Southern Wood for the best pressure treated lumber products available. They know that for the best protection against rot, fungal decay and termite attack all they need to look for is the little “yella tag.” It represents quality, and they know it means their project will withstand the weather season after season. Here’s why:
- Treated with the first wood preservative certified as an Environmentally Preferable Product.
- Durable and designed for outdoor construction.
- Lifetime Residential and Agricultural Limited Warranty against structural damage caused by fungal decay and termites for above ground, ground contact and fresh water contact applications. See warranty for specific provisions.
- Limited 15 Year Warranty for Fence Boards. See warranty for specific provisions.
- Use for many different building projects such as structural lumber, sill plates, outdoor furniture, patios, decks, garden edging, and landscaping structures.
- Building code compliant.
- Copper-based preservative with a co-biocide.
An Exciting New Treatment
The MicroPro™ preservative system used to produce YellaWood® brand products combines the well-established effectiveness of copper and an organic quaternary compound in an inventive approach to the pressure treatment process. By capturing copper in “sub-micron” sized particles and suspending them in solution before applying them to wood by pressure treatment, the performance of YellaWood® brand treated lumber is enhanced while providing protection against rot, fungal decay and termite attack.
Characteristics of the Micronized Copper Preservative
Products treated with micronized copper preservatives have many benefits including improved corrosion characteristics and, thanks to its lighter appearance, improved painting and staining capabilities. They are also available in a number of specialty treatments like built-in water repellents, and are available with beautiful color pigmentations. In addition, they are long-lasting, durable, clean to the touch, have no objectionable odor, and provide protection from rot, fungal decay and termite attack. Outdoor exposure testing shows that products treated with micronized copper preservatives offer superior product benefits compared to other copper based wood preservatives.
YellaWood® brand products are available in Southern Yellow Pine and South American Pine species. Approved uses include: Above Ground 5/4" Decking & Specialties, Above Ground General Use, Ground Contact and Fresh Water Contact. The preservatives used in the MicroPro™ process are registered by the EPA as a non-restricted use pesticide and do not require Proposition 65 labeling in California. YellaWood® brand products with micronized copper preservatives as described in ESR-1980 are building code compliant.
Specialty Treatments
YellaWood® brand products with micronized copper preservatives may be formulated with a number of specialty additives depending on the desired product application. One such specialty treatment is a product with built-in water repellents, which provide extra protection from the elements.
 Another popular treatment option available is the impregnation of a color pigment into the wood. This pigmentation process allows consumers to enjoy treated wood with the popular look of cedar and redwood at a more affordable price.
Weathering Information
 This innovative treating process allows consumers to enjoy wood the way Mother Nature intended; meaning, no more dark-green tint to wood. Thanks to the MicroPro™ technology, YellaWood®
brand products have a lighter, fresher, and more natural appearance! It is extremely important to pay attention to the end tags to make sure the desired treatment is indicated since freshly treated micronized copper products will appear only slightly greener than untreated wood. Over time, they will weather to a honey brown and then to a familiar, and often desired, gray. Outdoor exposure testing has shown that YellaWood® brand products with color pigments will retain their colors longer than true redwood and cedar products.
Warranty Information
A Lifetime Residential and Agricultural Limited Warranty is offered on YellaWood® brand products for above ground, ground contact and fresh water contact, used in residential and agricultural applications. Click here for specific warranty provisions.
A Limited 15 Year Warranty is offered on YellaWood® brand fence boards. Click here for specific warranty provisions.
Fastener Information
YellaWood® brand pressure treated pine with micronized copper preservatives exhibits corrosion rates on metal products similar to CCA pressure treated wood and untreated wood.
- For interior or exterior applications use fasteners and hardware that are in compliance with the manufacturer’s recommendations and the building codes for their intended use.
- For exterior applications galvanized protected connectors coated at a G90 level or its equivalent (0.90 oz./ft²) and other hardware and fasteners which meet building codes for exterior use can be used in direct contact with wood treated with micronized copper preservatives.
- Aluminum building products may be placed in direct contact with YellaWood® brand products used for interior uses and above ground exterior applications such as decks, fencing, and landscaping projects. Examples of aluminum products include siding, roofing, gutters, door and window trim, flashing, nails, fasteners and other hardware connectors. However, direct contact of micronized copper treated products with aluminum building products should be limited to code-compliant construction applications that provide proper water drainage and do not allow the wood to be exposed to standing water or water immersion.
We recommend you contact the aluminum building products manufacturer for its recommendations regarding use of their aluminum products in contact with micronized copper treated wood in ground contact applications or when exposed to salt water, brackish water, or chlorinated water, such as swimming pools or hot tubs.
Also check with the aluminum building products manufacturer regarding compatibility with other chemicals and cleaning agents. Contact Osmose for further information on aluminum contact use in commercial, industrial, and specialty applications such as boat construction.
Important Application Information for YellaWood® Brand Products
Certain adhesives add extra holding power. Apply adhesives in accordance with manufacturer’s directions.
When appearance permits, attach boards bark side up (annual rings arc upward) to reduce cupping. However, the best face should be placed up when a defect of the wood is apparent. Fasten thin boards to thicker boards to maintain structural integrity.
Drill pilot holes especially when nailing or screwing near the edge or end of a board. Pilot holes will help minimize splitting.
MCQ Snapshot
- Treatment Type: Micronized Copper Quaternary
- Protection from rot, fungal decay and termite attack: Yes
- Fence Warranty: Limited 15 Year
- Above Ground Warranty: Lifetime Residential & Agricultural Limited
- Ground Contact/Fresh Water Contact Warranty: Lifetime Residential & Agricultural Limited
- Paintable/Stainable: Yes
- Color Pigments: a cedar tone for a look similar to cedar products or a brown tone for a look similar to redwood products
- ESR: #1980
- EPA Approval: Yes
- Building Code Compliant: Yes
- Corrosion Characteristics: Similar to CCA treated and untreated wood
- Aluminum Contact: Yes
Important Information
- Consult the end tag to determine which preservative or preservative system was used in the treatment of that particular product. Micronized copper treated products may be used in direct contact with aluminum building products when limited to code-compliant construction applications that provide proper water drainage and do not allow the wood to be exposed to standing water or water immersion.
- Use fasteners and other hardware that are in compliance with building codes for the intended use with micronized copper treated products.
- ACQ treated products may not be used in direct contact with aluminum building products. ACQ treated products may corrode certain metal building products, including but not limited to fasteners, hardware, and flashing when placed in direct contact with such products. Use fasteners and other hardware that are in compliance with building codes for the intended use with ACQ treated products. To prevent premature corrosion and failure, consult the end tag to determine which preservative or preservative treatment was used and follow the metal products manufacturers' recommendations (including Fastener Information Sheets) as they relate to the specific preservative or preservative system indicated on the end tag.
- Do not burn preserved wood.
- Wear a dust mask and goggles when cutting or sanding wood.
- Wear gloves when working with wood.
- Some preservative may migrate from the treated wood into soil/water or may dislodge from the treated wood surface upon contact with skin.
- Wash exposed skin areas thoroughly.
- All sawdust and construction debris should be cleaned up and disposed of after construction.
- Wash work clothes separately from other household clothing before reuse.
- Preserved wood should not be used where it may come into direct or indirect contact with drinking water, except for uses involving incidental contact such as fresh water docks and bridges.
- Do not use preserved wood under circumstances when the preservative may become a component of food, animal feed or beehives.
- Do not use preserved wood as mulch.
- Only preserved wood that is visibly clean and free of surface residue should be used.
- If the wood is to be used in an interior application and becomes wet during construction, it should be allowed to dry before being covered or enclosed.
- If you desire to apply a paint, stain, clear water repellent or other finish to your preservative-treated wood, we recommend following the manufacturer’s instructions and label of the finishing product. Before you start, we recommend you apply the finishing product to a small exposed test area before finishing the entire project to ensure it provides the intended result before proceeding.
- Mold growth can and does occur on the surface of many products, including untreated and treated wood, during prolonged surface exposure to excessive moisture conditions. To remove mold from the treated wood surface, wood should be allowed to dry. Typically, mild soap and water can be used to remove remaining surface mold. For more information visit www.epa.gov.
- Projects should be designed and installed in accordance with federal, state and local building codes and ordinances governing construction in your area, and in accordance with the National Design Specifications® (NDS®) and the Wood Handbook.
Disposal Recommendations:
Preserved wood may be disposed of in landfills or burned in commercial or industrial incinerators or boilers in accordance with federal, state and local regulations.
Note: Electroplated galvanized fasteners and metal products are typically not accepted by the building codes for use in exterior applications, regardless of the type of wood used.
YellaWood® brand pressure treated products are treated with Micronized Copper Quaternary (MCQ) using the MicroPro™ copper preservative system.
Ask dealer for warranty details. Great Southern Wood Preserving, Inc., its affiliates, subsidiaries and TSO providers use Osmose, Inc. wood preserving products (MCQ), methods, systems and technology in the treatment of YellaWood® brand products. For more information visit www.osmose.com.
Click here for a copy of the YellaWood® brand MCQ Material Safety Data Sheet (MSDS), or write us at P.O. Box 610, Abbeville, AL 36310.
YellaWood® and the yellow tag are federally registered trademarks of Great Southern Wood Preserving, Inc. The Great Southern Wood Preserving, Inc. logo is a trademark of Great Southern Wood Preserving, Inc. MicroPro™ is a trademark of Osmose, Inc.
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